Gyarmat Szennyviztisztito Telep - Secondary Wastewater Treatment Plant in Győrszemere, Hungary

Gyarmat Szennyviztisztito Telep is a municipal wastewater treatment plant located in Győrszemere, a village in Győr-Moson-Sopron county, Hungary. The plant serves a population of approximately 1,200 people, reflecting its role in managing domestic wastewater for this small agglomeration in the Nyugat-Dunántúl region. The plant provides secondary treatment, which is the standard biological treatment stage required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The designed capacity is 1,375 m³/day, and the current discharge volume is 141.46 m³/day, indicating operational headroom. As a Hungarian facility, it operates under national regulations transposing EU directives, with oversight from the relevant water authority. The treated effluent is discharged into local watercourses that ultimately drain into the Danube River basin, a major European watershed. The plant's operation helps protect downstream water quality in the Danube and its tributaries, supporting aquatic ecosystems and reducing nutrient loading into the Black Sea.

The plant discharges into local streams that flow into the Rába River, a tributary of the Danube. The Danube River basin is ecologically significant, supporting diverse aquatic life and serving as a critical migratory corridor for fish species. The plant's secondary treatment reduces organic pollutants and nutrients, helping to mitigate eutrophication risks in downstream waters.